Why the storage moduli E' decrease with highr fiber volume?

Hi guys, I am facing problems to interpret a DMA results. Material: Composite Bisphenol A + curaua fiber What is being tested: the influence of fiber volume on the composites properties...

12 February 2021 174 7 View

Which buffer should I use to aliquot antibody in?

for western blot analysis the buffer in which the antibody already is, written in the datasheet, or should I use already the bsa or milk solution that I use for final diluition?

17 November 2020 4,804 3 View

What is the best protocol for simultaneous extraction and purification of DNA and RNA from animal tissues?

I need to perform a co-extraction of DNA and RNA from pools of juvenile Daphnia magna. I used the AllPrep DNA/RNA Mini Kit (QIAGEN) but with poor results in terms of DNA yeld and quality. I would...

22 October 2020 9,746 3 View

No title

The threat of pandemic disease is not new: For decades, public health experts advised that a coronavirus outbreak was looming, global proportions, and that the world was not equipped to fight it...

27 May 2020 2,871 25 View

Is it correct to compare Fst values obtained from different genetic markers?

Fst is used in many genetic studies which involve different markers (mtDNA, microsatellites, SNPs...) as methodologies and next-generation genetics improve. I was wondering if it would be correct...

27 April 2020 7,175 3 View

My work entails comparing the effect of tax on economic growth of two countries. Asides the panel regression, which other technique can I use?

MY specific objective is to make comparative analysis on the effect of tax revenue on GDP of country A and country B

26 June 2019 6,619 3 View

In Morris water maze training results for scopolamine-injected rats, is it normal that scopolamine doesn't cause difference on day 5 ?

And if so, is it related to short term memory or inability of scopolamine to impair spatial learning?

17 June 2019 9,461 3 View

How to prepare aqueous solution of Methyl Jasmonate dissolved in Tween 20?

I need to prepare 500 mL of aqueous solution of 1mM Methyl Jasmonate dissolved in 0.1% of Tween 20 for foliar application. How much MJ and how much Tween 20 do I need to use? Both compounds are...

02 May 2019 6,228 2 View

May I express a protein in C. glutamicum using a commercialy availabe vector?

29 March 2019 7,700 1 View

How can i use ethidium bromide for sample staining?

I don't want to add it directly into the gel but just using it as loading dye.

25 March 2019 5,889 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 3 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

How to run raise regression in R?

if anybody know how to run raise regression in r, and raise parameter selection, please help me

24 February 2021 8,199 1 View